4-Mercapto-1H-pyrazolo[3,4-d]pyrimidine

巯异嘌呤

Also known as: 1H-Pyrazolo[3,4-d]pyrimidine-4-thiol, 4-Mercaptopyrazolo[3,4-d]pyrimidine, Tisopurine, Thiopurinol, 1,5-Dihydro-4H-pyrazolo[3,4-d]pyrimidine-4-thione, Mercaptopyrazolepyrimidine, 4H-Pyrazolo[3,4-d]pyrimidine-4-thione,1,5-dihydro-, 1,2-Dihydropyrazolo[3,4-d]pyrimidine-4-thione, NSC 1392

4-Mercapto-1H-pyrazolo[3,4-d]pyrimidine (CAS 5334-23-6) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H4N4S and a molecular weight of 152.17700 g/mol. It is also known as 1H-Pyrazolo[3,4-d]pyrimidine-4-thiol, 4-Mercaptopyrazolo[3,4-d]pyrimidine and Tisopurine. Key properties include a melting point of 300ºC, a boiling point of 386.8ºC at 760 mmHg and a flash point of 187.7ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

5334-23-6

Jingsj CID

J-19632-1

Molecular Formula

C₅H₄N₄S

Chinese Name

巯异嘌呤

Molecular Weight

152.17700 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026